#define vlen2(v) (_vlen2 = (v), dotproduct(_vlen2, _vlen2))
#if 1
-noref float _vdist_f;
/** Vector distance comparison, avoids sqrt() */
-#define vdist(v, cmp, f) (vlen2(v) cmp (_vdist_f = (f), _vdist_f * _vdist_f))
+#define vdist(v, cmp, f) (vlen2(v) cmp ((f) ** 2))
#else
#define vdist(v, cmp, f) (vlen(v) cmp (f))
#endif
return min(max(v.x, -v.x), max(v.y, -v.y));
}
-ERASEABLE
-float dist_point_line(vector p, vector l0, vector ldir)
-{
- ldir = normalize(ldir);
-
- // remove the component in line direction
- p = p - (p * ldir) * ldir;
-
- // vlen of the remaining vector
- return vlen(p);
-}
-
/** requires that m2>m1 in all coordinates, and that m4>m3 */
ERASEABLE
float boxesoverlap(vector m1, vector m2, vector m3, vector m4) { return m2_x >= m3_x && m1_x <= m4_x && m2_y >= m3_y && m1_y <= m4_y && m2_z >= m3_z && m1_z <= m4_z; }
ERASEABLE
float boxinsidebox(vector smins, vector smaxs, vector bmins, vector bmaxs) { return smins.x >= bmins.x && smaxs.x <= bmaxs.x && smins.y >= bmins.y && smaxs.y <= bmaxs.y && smins.z >= bmins.z && smaxs.z <= bmaxs.z; }
+#define pointinsidebox(point, bmins, bmaxs) boxinsidebox(point, point, bmins, bmaxs)
+
#define PITCH(v) ((v).x)
#define YAW(v) ((v).y)
#define ROLL(v) ((v).z)
noref vector _yinvert;
#define yinvert(v) (_yinvert = (v), _yinvert.y = 1 - _yinvert.y, _yinvert)
+/// \param[in] p point
+/// \param[in] l0 starting point of ldir
+/// \param[in] ldir line
+/// \return Vector starting from p perpendicular to ldir
+ERASEABLE
+vector point_line_vec(vector p, vector l0, vector ldir)
+{
+ ldir = normalize(ldir);
+ p = l0 - p;
+ // remove the component in line direction from p
+ return p - ((p * ldir) * ldir);
+}
+
/**
* @param dir the directional vector
* @param norm the normalized normal
ERASEABLE
vector NearestPointOnBox(entity box, vector org)
{
- vector m1 = box.mins + box.origin;
- vector m2 = box.maxs + box.origin;
+ vector mi = box.mins + box.origin;
+ vector ma = box.maxs + box.origin;
return vec3(
- bound(m1.x, org.x, m2.x),
- bound(m1.y, org.y, m2.y),
- bound(m1.z, org.z, m2.z)
+ bound(mi.x, org.x, ma.x),
+ bound(mi.y, org.y, ma.y),
+ bound(mi.z, org.z, ma.z)
);
}
+
+ERASEABLE
+vector NearestPointOnBoundingBox(vector mi, vector ma, vector org)
+{
+ return vec3(
+ bound(mi.x, org.x, ma.x),
+ bound(mi.y, org.y, ma.y),
+ bound(mi.z, org.z, ma.z)
+ );
+}
+
+// bones_was_here: rounding bbox to nearest perfect floats prevents obscure collision bugs like #2742
+// FIXME: QC shouldn't need to work around tracebox potentially returning a tiny trace_fraction when the move should have been blocked.
+// Tiny values are valid in some situations and can't simply be ignored.
+#define PFLOAT (1/1024) // 1/32 1/64 etc also work
+#define RPFLOAT(a) (a=rint(a/PFLOAT)*PFLOAT)
+ERASEABLE
+vector RoundPerfectVector(vector v)
+{
+ RPFLOAT(v.x); RPFLOAT(v.y); RPFLOAT(v.z);
+ return v;
+}
+
#endif